The 4 Brass Nut Fitting by Fittings Unlimited Inc is designed for secure connections in fluid systems. Constructed from high-quality brass, this fitting offers excellent durability and resistance to corrosion. With a size of 4, it is compatible with various pipe sizes, ensuring a reliable connection. Ideal for both hydraulic and pneumatic applications, this fitting meets industry standards for safety and performance. Its robust design allows for easy installation, making it a valuable addition to any plumbing or fluid transfer project.